.bg-size-cover {
  background-size: cover;
}

.bg-position-center {
  background-position: center;
}

.btn.btn-transparent {
  background-color: rgba(255,255,255,0.2);
  color: white;
  letter-spacing: 0.09rem;
  outline: white;
}

.btn:focus {
  box-shadow: 0 0 0 0.2rem rgba(255,255,255,.45);
}

.text-sea {
  color: #405bca;
}